Synology is providing a Glacier backup tool which seems to be an easy way to backup data on the low cost amazon solution. I will not describe how to configure it a log of blogs are doing it and I do not like to be redundant. The question I did not find an easy answer was : will I be able to restore my backup even if my synology crashed and I would not be able to get one other…
These two last days, I was participating to devoxx in Paris. One of the star topic of the event this year was Docker so I attempt different talk about this container technology I already has discovered in a previous JUG session. It was not an evidence that this technology was more than something interesting for DEV needing small, fast starting, small memory footprint, environment for testing. With my OPS hat, I did not catch the interest. This was before Devoxx and the different talk. The aspects I’ll detailed in this post have not been addressed during Devoxx, as much as I have seen, as mostly the DEV aspects have been addressed, I going to synthesize my opinion.
Since a couple of day at work I had to investigate on some network issues for an application, it seems that we have a strange ARP configuration that may be the main issue… by the way, I discovered another strange thing where icmp packets sent in burst mode (like a flood) are lost at variable rates. Here is the note on my investigations
It’s not the first time I have some trouble to setup grub2 correctly with my nvidia raid system (also called fake-raid) … I did not find exactly why, but for sure i never try to install grub2 correctly from yast or in manual mode.
The first solution to find was : how to boot a fresh installed system when the bootloader has not been configured. The solution is here : http://www.supergrubdisk.org. This tool is really simple and so efficient to boot ! I recommend to have this in your linux emergency kit !
The second solution, once the system has start is to reinstall a bootloader. Here, in fact the solution is easy : destroy this f**** grub2 and replace it by the legacy really good grub ! lol
Then it works … last step to me: understand why gnome is taking so long to start ?!? or the answer is in the question …
I love Linux !
An easy way to create a word list in bash :
for i in {a..z} ; do echo $i ; done
for i in {a..z}{{a..z},{0..9},-} ; do echo $i ; done
for i in {a..z}{{a..z},{0..9},-}{{a..z},{0..9},-} ; do echo $i ; done
The first line creates a list of one characters word from a to z
The second line creates a list of two characters word from aa to z- the alphabet for the second character can be a-z or 0-9 or –
The third line is a three character word list.
PIWan project : Here is a new, quick & dirty project to be done with a raspberry PI : At work we currently have to simulate our application for a worldwide usage. We have really great tools for that but they need expertise and specific campaigns. The purpose of this document is to describe a RPI based solution with two Ethernet cards and some clever command lines to simulate a wan network for developers. The advantage of this solution will be to cost less than 100euros and will be easy to use with the right documentation.
See next pages for implementation details:
The BeagleBone black do not have Real Time Clock and as a consequence each time you reboot, you’re back at time 0. To get it updated to the local hour, you can configure NTP client (if connected to network) using the following commands:
root@beaglebone:~# opkg update root@beaglebone:~# opkg install ntp ntpdate root@beaglebone:~# mv /etc/localtime /etc/localtime.old root@beaglebone:~# ln -s /usr/share/zoneinfo/Europe/Paris /etc/localtime root@beaglebone:~# killall -KILL ntpd root@beaglebone:~# ntpdate pool.ntp.org root@beaglebone:~# /etc/init.d/ntpd start root@beaglebone:~# date Sun Jun 2 17:41:10 CEST 2013
